Is the book Ishmael by Daniel Quinn anti-Christian?

The book offers a new way of looking at religion, society,and moral theory. The author uses analogies encompassing higher beings or gods only so that the reader can see through the eyes of such a creator or creators to give a new point of view ( thinking outside the box to see the whole picture).there is no inane bashing of Christianity or any other religion in the book. This book encompasses a philosophy not a belief. One should read it with an open mind instead of with objective or biased sentiment. To me the author is a modern day Baruch Spinoza ( a less known philosopher who went aginst the grain in search of truth.) "Philosophy has no end in view, save truth. Faith looks for nothing but obedience and piety." (Baruch Spinoza / 1632-1677 / Theological-Political Treatise / 1670)